An oroantral communication is a relatively common yet, serious complication following the extraction of posterior maxillary teeth because of their close relationship to the maxillary sinus.

Several surgical techniques exist for the repair of oroantral communication, including local and free flaps, tissue expansion, allogenic tissue, and biomaterials.

The present study aims to evaluate the use of the BioXclude amnion chorion membrane in the repair of oroantral communication.

This study will be performed on ten patients who have oroantral communication after extracting posterior maxillary teeth. The oroantral communication will be repaired by using the BioXclude amnion chorion membrane.

Inclusion Criteria:

• Patients should be free of any relevant systemic diseases.
• Patients with recent oroantral communication (O.A.C) (24:72) hours .
• Good oral hygiene

Exclusion Criteria:

• An immune compromised state.
• Previous sinus disease.
• History of sinus surgery.
• Presence of intra-antral foreign bodies and need for cold well-luc procedure.
• Presence of intra-sinus pathology